Disable USB Removable Storage by Domain policy

I used to have a domain group policy that would enable or disable usb removable storage based on whether the user was a member of the group EnableUSB or DisableUSB. It was working a few months ago, but now it doesn't seem to be. I thought at first it was because I've upgrade most workstations to Windows 10, but no it's not working with Windows 7 either (on machines it used to work on)

I've researched and tried a few different methods and nothing seems to be working out for me.

Anyone successfully have this working with Windows Server 2012 R2 and Windows 10 clients?

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